Asp.net - Using Output Parameter In SqlDataSource?
Nov 15, 2011
I am retrieving the scope_identity of a db entry, and I want to use that variable in a different SqlDataSource, primarily as an but I am unable to access the variable.I have the variable being displayed in a msgbox, and it is displaying properly, I am just unsure how to access it in the SqlDataSource. Here is my code;This is the datasource that inserts the first information and received the scope_identity, as well as the _inserted event;
Code:
I'm in the process of switching my application from MSSQL to MYSQL. When I was using MSSQL, I retrieved the last auto increment value via
Private Sub dsImpoundInformation_Inserted(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceStatusEventArgs) Handles dsImpoundInformation.Inserted _impoundId = e.Command.Parameters("impoundId").Value End Sub
[Code]...
ultimately, I'm just trying to get the last auto increment value but there are other sections of my code in other applications that I plan on switching to MYSQL that depend on output parameters. I have't yet explored using stored procedures but at this time I would like to get this to work in a similar fashion to how I had it with MSSQL.
I am trying to get a parameter for my update from the gridview but it is an ID column that I do not want displayed. If I display the data in a boundfield it works fine but if I set the visibility to false the parameter is no longer sent to the update stored procedure. There does not appear to be a hiddenfield column that I can put into the gridview.I have tried to set the parameters through the code behind but I am not certain on how to access the data I want the following code does not work (It sets the parameter to nothing
Protected Sub grvFacilityDisciplineBillingRate_RowUpdating(ByVal sender As Object, ByVal e As GridViewUpdateEventArgs) Handles grvFacilityDisciplineBillingRate.RowUpdating Dim row As GridViewRow = grvFacilityDisciplineBillingRate.Rows(e.RowIndex)
Let's say we have a value coming in through the URL of a page. Example: www.test.com/page.aspx?&Key=Val. Val is retrievable through Request.Querystring("Key").Is there an accepted best practice for assigning a QueryString Value to a parameter of a SqlDataSource defined on an ASPX page?
Options that I know of: Do not include parameters in the ASPX file. Add them directly through the codebehind -- and assign Param.DefaultValue upon adding. Set Param.DefaultValue in the page load (Codeblock 2)
Both of these use DefaultValue, a property that clearly was not intended to be used in this manner. Do the ASP.NET overlords have a recommended method in mind for achieving this common task?
I am working on a Asp.net based project and my requiremnent is to generate a PARTNO with the combination of MaterialType+ProductID and - 4digit random number?
NOTE: ProductID is Primary key and also set it to output parameter for example If material type is 500 and product ID generated 55 and random no generated 5434, then part no become 555-5434 how could I store partno in same table, I am somewhat trying like that
Connection.Open() Dim trn As SqlClient.SqlTransaction trn = Connection.BeginTransaction Using trn
I'm creating a tool using windows form which needs to retrieve data from an Oracle database configured to use odp.net using an Oracle Stored Procedure. I'm planning to use the code below for some basic testing. The Stored Procedure is made up of a number of OUT parameters, some of which have been mapped using the datatypes available in .NET, however other parameters are defined as tables (I guess lists) and i'm not sure how to access this data
Try Dim oraConnString As String = "Data Source=*****;User Id=******;Password=******;" Dim oraConnection As New OracleConnection(oraConnString)
ALTER PROCEDURE dbo.uspGetOrderTrackingHeaderInfo @ContractID varchar(9) , @SalesRepID int , @StatusID int , @TypeID int , @StartDate datetime [Code]...
We have an c# class, say we have a following method with out parameterpublic class TestCsharpClass{ public Int32 GetNumber(out bool pbNull){ pbnull=true; return 1; }}tlb file for C# project is generated with regasm tool. The above method is called in vb6 application using callbyName Dim number as IntegerDim objTest as TestCsharpClassdim blnNull as Booleannumber = CallByName(objTest,"GetNumber",VbMethod,blnNull) return value 'Number' is fine.But 'blnNull' boolean variable is "False" always.We were unable to get the out parameter value from C# code.Function signatures are defined in the IDL file.Without changing the function signature is it possible to get the resolution/workaround solution for this issue
I am having a stored procedure in sql 2005 the procedure is to retrieve year code between two days it works correctly in sql query analyzer and it returns value [code]...
I have a sql stored procedure with an output parameter. I'm just trying to read the output parameter in my code and I just cannot get it to work. The error I get is: "Procedure or function 'GetFolderData' expects parameter '@RootName', which was not supplied."
It looks like I am supplying this but it's not working.
Here is my stored procedure:
ALTER PROCEDURE [dbo].[GetFolderData] ( @RootID int,
Here's a simple code snippet of a larger function as an example.
Using conn as New SqlConnection("conn string") Using find as new SqlCommand("ExampleProc",conn) Dim rParam as new SqlParameter("@RESULT",SqlDbType.Int)
[code]....
I know the Output parameter is returned after the SqlDataReader is closed. From what I think I know, the Using statement will call .Dispose on the SqlDataReader, so will that basically wipe out the Output parameter? If so, what is the best method to call a SqlDataReader that also contains Output parameters that closes and disposes everything correctly? Let me add that based on what I've read you only have access to the Output parameter using a SqlDataReader after you call .Close on the SqlDataReader.
When I check the value of nAmount it stil contains the original value -1 the output value didn't return from the stored procedure although the number of records updated is 0 or more. The procedure was checked, it works and there are records updated and the value of @Amount is SET to a value 0 or more. I just don't get the values back. eventough the parameter @Amount is defined as OUTPUT. I also tried with outParam.Direction = Data.ParameterDirection.InputOutput instead of outParam.Direction = Data.ParameterDirection.Output . Same result. How do I get the value back from the stored procedure?
How would I use a value from an output parameter from a stored procedure in a vb 2005 application. I would like to capture a run date from the procedure and show it on several forms in the app.
The mSSQL server I have a stored procedure. That does not have an output parameter.When I run it in SQL Management Studio so the procedure will output 1 cell.
My application uses a third party API. This API uses a few functions that returns a value by reference as one of the function parameters. Problem is according to their documentation, the value I am trying to get out of this function is a string pointer.
So if that made no sense, heres an example of the syntax of the function as shown in their documentation: long ExampleFunction(long ID, long PropNum, char* name, long MaxStringLength) Input Parameters: ID, PropNum Output Parameters: name, MaxStringLength
Thats pretty much all the info I've got. Obviously they are not using VB.Net, looks like C to me. I want to get the name output parameter and work with it, but once I get this value, I cant change anything. I know this is because its a pointer (reference type?) but I am still at a loss as to what to do.
After the SQLDataSource gets the values from the database, I want to be able to use these values in the code behind. Kindly spare 5 minutes and give me some suggestions.
I have a SqlDataSource that is supplying data to my GridView. Thats all i am using on my form, thus i have NO code behind at all. But somewhere i need a TRY CATCH block just in case my connection get's lost. What code must i place where?
If i get a error i want my lblMessage Text to be "No connection".
I want to call a Stored Procedure using SqlDataSource. I've been reading the library documentation of the classes but i'm getting slightly confused. To call a stored procedure, I understand that I have to change the selectcommandtype and then set the selectcommand property to the name of the procedure.
'Change command type to stored procedure SqlDataSource1.SelectCommandType = SqlDataSourceCommandType.StoredProcedure 'set name of stored procedure
I have an SqlDataSource object, linked to a GridView, which receives data from a database when executed.I'd like to add the values of the "Cost" column, to get the "TotalCost", and place it in a TextBox or Label on top of the GridView.Is it possible to just use (recycle) the data in the SqlDataSource object, instead of using another SqlDataSource object to just get the TotalCost"?
I have a asp.net page that has several SqlDataSources defined that feed data into some graphs. The problem is that the graph product does not handle "no data" very well, and throws an error. I'd like this to handle the situation more gracefully-- so I need to check whether the SqlDataSource returned data or now before rendering the graph (and if not, just post a message saying "No Data" or something).
Is there an easy way to check if the data source returned data, and do this if/then without a bunch of code behind?
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click[code]...
it checks the username and password in the database and redirecrs to respective page on the basis of rows returned. i'm having problem in finding a right function in the sqldatareader namespace so that it counts the number of rows affected.
